Please ask about the length of stay in Korea.

I am planning to send my daughter to study at 중국대학교. I would like to know what the living conditions are like in Korea. I am also worried about whether it will be easy to live there and whether there will be any difficulties with food and drink. Also, since I have to carry my own things, I would like to know what I can buy at convenience stores and 다시소. I would also like to ask if it will be difficult for my daughter to eat by herself.